吉林省中部地区玉米田杂草种类及其优势种群调查报告

Investigation Report About the Weed Species and Dominant Population in the Corn Field in the Central Area of Jilin Province

摘要:

掌握不同生态条件下的玉米田杂草发生种类及优势种群情况,对于制定杂草综合治理方案,科学选用化学除草剂及其配套技术具有十分重要的指导意义.本文选用倒"W"型9点取样法,对吉林省主要玉米产区的玉米田杂草发生情况进行了普查.结果表明,我省中部地区玉米田杂草种类有16个科,35种.相对多度较大的有稗草、苣荬菜等十余种。

Abstract:

Understanding the weed species and dominant population situation in the corn field under different ecological environment condition has important significance to draw up a comprehensive treatment scheme to control weed and using herbicides and it's supporting measures.Weed survey in corn field was conducted using an inverted W pattern with 9 sampling points in corn producing area of Jilin province,there appeared 35 species,belonging to 16 families,among which barnyard grass(Echinochlia crusgalli),perennial sow-thistle(Ixeris denficulata) are dominate in the field.